One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10,13,16)(11,14,12,15)(17,18,23,24)(19,22,27,32)(20,25,29,31)(21,30,28,26)(1,3)(2,6)(4,7)(5,8)(9,10)(11,14)(12,15)(13,16)(17,19,23,27)(18,22,24,32)(20,28,29,21)(25,26,31,30)(1,2,5,4)(3,7,8,6)(9,11,13,12)(10,14,16,15)(18,24)(19,27)(20,29)(26,30)(9,11,13,12)(10,14,16,15)(17,20)(18,25)(19,28)(21,27)(22,26)(23,29)(24,31)(30,32)(1,3)(2,7)(4,6)(5,8)(17,21,23,28)(18,26,24,30)(19,20,27,29)(22,31,32,25)(1,4,5,2)(3,7,8,6)(9,12,13,11)(10,15,16,14)(17,22)(18,27)(19,24)(20,26)(21,25)(23,32)(28,31)(29,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.